debian-mirror-gitlab/app/assets/javascripts/awards_handler.js
2018-11-18 11:00:15 +05:30

634 lines
20 KiB
JavaScript

/* eslint-disable class-methods-use-this */
import $ from 'jquery';
import _ from 'underscore';
import Cookies from 'js-cookie';
import { __ } from './locale';
import { updateTooltipTitle } from './lib/utils/common_utils';
import { isInVueNoteablePage } from './lib/utils/dom_utils';
import flash from './flash';
import axios from './lib/utils/axios_utils';
const animationEndEventString = 'animationend webkitAnimationEnd MSAnimationEnd oAnimationEnd';
const transitionEndEventString = 'transitionend webkitTransitionEnd oTransitionEnd MSTransitionEnd';
const requestAnimationFrame =
window.requestAnimationFrame ||
window.webkitRequestAnimationFrame ||
window.mozRequestAnimationFrame ||
window.setTimeout;
const FROM_SENTENCE_REGEX = /(?:, and | and |, )/; // For separating lists produced by ruby's Array#toSentence
const categoryLabelMap = {
activity: 'Activity',
people: 'People',
nature: 'Nature',
food: 'Food',
travel: 'Travel',
objects: 'Objects',
symbols: 'Symbols',
flags: 'Flags',
};
const IS_VISIBLE = 'is-visible';
const IS_RENDERED = 'is-rendered';
export class AwardsHandler {
constructor(emoji) {
this.emoji = emoji;
this.eventListeners = [];
this.toggleButtonSelector = '.js-add-award';
this.menuClass = 'js-award-emoji-menu';
}
bindEvents() {
// If the user shows intent let's pre-build the menu
this.registerEventListener(
'one',
$(document),
'mouseenter focus',
this.toggleButtonSelector,
'mouseenter focus',
() => {
const $menu = $(`.${this.menuClass}`);
if ($menu.length === 0) {
requestAnimationFrame(() => {
this.createEmojiMenu();
});
}
},
);
this.registerEventListener('on', $(document), 'click', this.toggleButtonSelector, e => {
e.stopPropagation();
e.preventDefault();
this.showEmojiMenu($(e.currentTarget));
});
this.registerEventListener('on', $('html'), 'click', e => {
const $target = $(e.target);
if (!$target.closest(`.${this.menuClass}`).length) {
$('.js-awards-block.current').removeClass('current');
if ($(`.${this.menuClass}`).is(':visible')) {
$(`${this.toggleButtonSelector}.is-active`).removeClass('is-active');
this.hideMenuElement($(`.${this.menuClass}`));
}
}
});
const emojiButtonSelector = `.js-awards-block .js-emoji-btn, .${this.menuClass} .js-emoji-btn`;
this.registerEventListener('on', $(document), 'click', emojiButtonSelector, e => {
e.preventDefault();
const $target = $(e.currentTarget);
const $glEmojiElement = $target.find('gl-emoji');
const $spriteIconElement = $target.find('.icon');
const emojiName = ($glEmojiElement.length ? $glEmojiElement : $spriteIconElement).data(
'name',
);
$target.closest('.js-awards-block').addClass('current');
this.addAward(this.getVotesBlock(), this.getAwardUrl(), emojiName);
});
}
registerEventListener(method = 'on', element, ...args) {
element[method].call(element, ...args);
this.eventListeners.push({
element,
args,
});
}
showEmojiMenu($addBtn) {
if ($addBtn.hasClass('js-note-emoji')) {
$addBtn
.closest('.note')
.find('.js-awards-block')
.addClass('current');
} else {
$addBtn.closest('.js-awards-block').addClass('current');
}
const $menu = $(`.${this.menuClass}`);
const $thumbsBtn = $menu.find('[data-name="thumbsup"], [data-name="thumbsdown"]').parent();
const $userAuthored = this.isUserAuthored($addBtn);
if ($menu.length) {
if ($menu.is('.is-visible')) {
$addBtn.removeClass('is-active');
this.hideMenuElement($menu);
$('.js-emoji-menu-search').blur();
} else {
$addBtn.addClass('is-active');
this.positionMenu($menu, $addBtn);
this.showMenuElement($menu);
$('.js-emoji-menu-search').focus();
}
} else {
$addBtn.addClass('is-loading is-active');
this.createEmojiMenu(() => {
const $createdMenu = $(`.${this.menuClass}`);
$addBtn.removeClass('is-loading');
this.positionMenu($createdMenu, $addBtn);
return setTimeout(() => {
this.showMenuElement($createdMenu);
$('.js-emoji-menu-search').focus();
}, 200);
});
}
$thumbsBtn.toggleClass('disabled', $userAuthored);
$thumbsBtn.prop('disabled', $userAuthored);
}
// Create the emoji menu with the first category of emojis.
// Then render the remaining categories of emojis one by one to avoid jank.
createEmojiMenu(callback) {
if (this.isCreatingEmojiMenu) {
return;
}
this.isCreatingEmojiMenu = true;
// Render the first category
const categoryMap = this.emoji.getEmojiCategoryMap();
const categoryNameKey = Object.keys(categoryMap)[0];
const emojisInCategory = categoryMap[categoryNameKey];
const firstCategory = this.renderCategory(categoryLabelMap[categoryNameKey], emojisInCategory);
// Render the frequently used
const frequentlyUsedEmojis = this.getFrequentlyUsedEmojis();
let frequentlyUsedCatgegory = '';
if (frequentlyUsedEmojis.length > 0) {
frequentlyUsedCatgegory = this.renderCategory('Frequently used', frequentlyUsedEmojis, {
menuListClass: 'frequent-emojis',
});
}
const emojiMenuMarkup = `
<div class="emoji-menu ${this.menuClass}">
<input type="text" name="emoji-menu-search" value="" class="js-emoji-menu-search emoji-search search-input form-control" placeholder="Search emoji" />
<div class="emoji-menu-content">
${frequentlyUsedCatgegory}
${firstCategory}
</div>
</div>
`;
document.body.insertAdjacentHTML('beforeend', emojiMenuMarkup);
this.addRemainingEmojiMenuCategories();
this.setupSearch();
if (callback) {
callback();
}
}
addRemainingEmojiMenuCategories() {
if (this.isAddingRemainingEmojiMenuCategories) {
return;
}
this.isAddingRemainingEmojiMenuCategories = true;
const categoryMap = this.emoji.getEmojiCategoryMap();
// Avoid the jank and render the remaining categories separately
// This will take more time, but makes UI more responsive
const menu = document.querySelector(`.${this.menuClass}`);
const emojiContentElement = menu.querySelector('.emoji-menu-content');
const remainingCategories = Object.keys(categoryMap).slice(1);
const allCategoriesAddedPromise = remainingCategories.reduce(
(promiseChain, categoryNameKey) =>
promiseChain.then(
() =>
new Promise(resolve => {
const emojisInCategory = categoryMap[categoryNameKey];
const categoryMarkup = this.renderCategory(
categoryLabelMap[categoryNameKey],
emojisInCategory,
);
requestAnimationFrame(() => {
emojiContentElement.insertAdjacentHTML('beforeend', categoryMarkup);
resolve();
});
}),
),
Promise.resolve(),
);
allCategoriesAddedPromise
.then(() => {
// Used for tests
// We check for the menu in case it was destroyed in the meantime
if (menu) {
menu.dispatchEvent(new CustomEvent('build-emoji-menu-finish'));
}
})
.catch(err => {
emojiContentElement.insertAdjacentHTML(
'beforeend',
'<p>We encountered an error while adding the remaining categories</p>',
);
throw new Error(`Error occurred in addRemainingEmojiMenuCategories: ${err.message}`);
});
}
renderCategory(name, emojiList, opts = {}) {
return `
<h5 class="emoji-menu-title">
${name}
</h5>
<ul class="clearfix emoji-menu-list ${opts.menuListClass || ''}">
${emojiList
.map(
emojiName => `
<li class="emoji-menu-list-item">
<button class="emoji-menu-btn text-center js-emoji-btn" type="button">
${this.emoji.glEmojiTag(emojiName, {
sprite: true,
})}
</button>
</li>
`,
)
.join('\n')}
</ul>
`;
}
positionMenu($menu, $addBtn) {
const position = $addBtn.data('position');
// The menu could potentially be off-screen or in a hidden overflow element
// So we position the element absolute in the body
const css = {
top: `${$addBtn.offset().top + $addBtn.outerHeight()}px`,
};
if (position === 'right') {
css.left = `${$addBtn.offset().left - $menu.outerWidth() + 20}px`;
$menu.addClass('is-aligned-right');
} else {
css.left = `${$addBtn.offset().left}px`;
$menu.removeClass('is-aligned-right');
}
return $menu.css(css);
}
addAward(votesBlock, awardUrl, emoji, checkMutuality, callback) {
const isMainAwardsBlock = votesBlock.closest('.js-noteable-awards').length;
if (isInVueNoteablePage() && !isMainAwardsBlock) {
const id = votesBlock.attr('id').replace('note_', '');
this.hideMenuElement($(`.${this.menuClass}`));
$(`${this.toggleButtonSelector}.is-active`).removeClass('is-active');
const toggleAwardEvent = new CustomEvent('toggleAward', {
detail: {
awardName: emoji,
noteId: id,
},
});
document.querySelector('.js-vue-notes-event').dispatchEvent(toggleAwardEvent);
}
const normalizedEmoji = this.emoji.normalizeEmojiName(emoji);
const $emojiButton = this.findEmojiIcon(votesBlock, normalizedEmoji).parent();
this.postEmoji($emojiButton, awardUrl, normalizedEmoji, () => {
this.addAwardToEmojiBar(votesBlock, normalizedEmoji, checkMutuality);
return typeof callback === 'function' ? callback() : undefined;
});
this.hideMenuElement($(`.${this.menuClass}`));
return $(`${this.toggleButtonSelector}.is-active`).removeClass('is-active');
}
addAwardToEmojiBar(votesBlock, emoji, checkForMutuality) {
if (checkForMutuality || checkForMutuality === null) {
this.checkMutuality(votesBlock, emoji);
}
this.addEmojiToFrequentlyUsedList(emoji);
const normalizedEmoji = this.emoji.normalizeEmojiName(emoji);
const $emojiButton = this.findEmojiIcon(votesBlock, normalizedEmoji).parent();
if ($emojiButton.length > 0) {
if (this.isActive($emojiButton)) {
this.decrementCounter($emojiButton, normalizedEmoji);
} else {
const counter = $emojiButton.find('.js-counter');
counter.text(parseInt(counter.text(), 10) + 1);
$emojiButton.addClass('active');
this.addYouToUserList(votesBlock, normalizedEmoji);
this.animateEmoji($emojiButton);
}
} else {
votesBlock.removeClass('hidden');
this.createEmoji(votesBlock, normalizedEmoji);
}
}
getVotesBlock() {
if (isInVueNoteablePage()) {
const $el = $(`${this.toggleButtonSelector}.is-active`).closest('.note.timeline-entry');
if ($el.length) {
return $el;
}
}
const currentBlock = $('.js-awards-block.current');
let resultantVotesBlock = currentBlock;
if (currentBlock.length === 0) {
resultantVotesBlock = $('.js-awards-block').eq(0);
}
return resultantVotesBlock;
}
getAwardUrl() {
return this.getVotesBlock().data('awardUrl');
}
checkMutuality(votesBlock, emoji) {
const awardUrl = this.getAwardUrl();
if (emoji === 'thumbsup' || emoji === 'thumbsdown') {
const mutualVote = emoji === 'thumbsup' ? 'thumbsdown' : 'thumbsup';
const $emojiButton = votesBlock.find(`[data-name="${mutualVote}"]`).parent();
const isAlreadyVoted = $emojiButton.hasClass('active');
if (isAlreadyVoted) {
this.addAward(votesBlock, awardUrl, mutualVote, false);
}
}
}
isActive($emojiButton) {
return $emojiButton.hasClass('active');
}
isUserAuthored($button) {
return $button.hasClass('js-user-authored');
}
decrementCounter($emojiButton, emoji) {
const counter = $('.js-counter', $emojiButton);
const counterNumber = parseInt(counter.text(), 10);
if (counterNumber > 1) {
counter.text(counterNumber - 1);
this.removeYouFromUserList($emojiButton);
} else if (emoji === 'thumbsup' || emoji === 'thumbsdown') {
$emojiButton.tooltip('dispose');
counter.text('0');
this.removeYouFromUserList($emojiButton);
if ($emojiButton.parents('.note').length) {
this.removeEmoji($emojiButton);
}
} else {
this.removeEmoji($emojiButton);
}
return $emojiButton.removeClass('active');
}
removeEmoji($emojiButton) {
$emojiButton.tooltip('dispose');
$emojiButton.remove();
const $votesBlock = this.getVotesBlock();
if ($votesBlock.find('.js-emoji-btn').length === 0) {
$votesBlock.addClass('hidden');
}
}
getAwardTooltip($awardBlock) {
return $awardBlock.attr('data-original-title') || $awardBlock.attr('data-title') || '';
}
toSentence(list) {
let sentence;
if (list.length <= 2) {
sentence = list.join(' and ');
} else {
sentence = `${list.slice(0, -1).join(', ')}, and ${list[list.length - 1]}`;
}
return sentence;
}
removeYouFromUserList($emojiButton) {
const awardBlock = $emojiButton;
const originalTitle = this.getAwardTooltip(awardBlock);
const authors = originalTitle.split(FROM_SENTENCE_REGEX);
authors.splice(authors.indexOf('You'), 1);
return awardBlock
.closest('.js-emoji-btn')
.removeData('title')
.removeAttr('data-title')
.removeAttr('data-original-title')
.attr('title', this.toSentence(authors))
.tooltip('_fixTitle');
}
addYouToUserList(votesBlock, emoji) {
const awardBlock = this.findEmojiIcon(votesBlock, emoji).parent();
const origTitle = this.getAwardTooltip(awardBlock);
let users = [];
if (origTitle) {
users = origTitle.trim().split(FROM_SENTENCE_REGEX);
}
users.unshift('You');
return awardBlock
.attr('title', this.toSentence(users))
.tooltip('_fixTitle');
}
createAwardButtonForVotesBlock(votesBlock, emojiName) {
const buttonHtml = `
<button class="btn award-control js-emoji-btn has-tooltip active" title="You" data-placement="bottom">
${this.emoji.glEmojiTag(emojiName)}
<span class="award-control-text js-counter">1</span>
</button>
`;
const $emojiButton = $(buttonHtml);
$emojiButton
.insertBefore(votesBlock.find('.js-award-holder'))
.find('.emoji-icon')
.data('name', emojiName);
this.animateEmoji($emojiButton);
$('.award-control').tooltip();
votesBlock.removeClass('current');
}
animateEmoji($emoji) {
const className = 'pulse animated once short';
$emoji.addClass(className);
this.registerEventListener('on', $emoji, animationEndEventString, e => {
$(e.currentTarget).removeClass(className);
});
}
createEmoji(votesBlock, emoji) {
if ($(`.${this.menuClass}`).length) {
this.createAwardButtonForVotesBlock(votesBlock, emoji);
}
this.createEmojiMenu(() => {
this.createAwardButtonForVotesBlock(votesBlock, emoji);
});
}
postEmoji($emojiButton, awardUrl, emoji, callback) {
if (this.isUserAuthored($emojiButton)) {
this.userAuthored($emojiButton);
} else {
axios
.post(awardUrl, {
name: emoji,
})
.then(({ data }) => {
if (data.ok) {
callback();
}
})
.catch(() => flash(__('Something went wrong on our end.')));
}
}
findEmojiIcon(votesBlock, emoji) {
return votesBlock.find(`.js-emoji-btn [data-name="${emoji}"]`);
}
userAuthored($emojiButton) {
const oldTitle = this.getAwardTooltip($emojiButton);
const newTitle = 'You cannot vote on your own issue, MR and note';
updateTooltipTitle($emojiButton, newTitle).tooltip('show');
// Restore tooltip back to award list
return setTimeout(() => {
$emojiButton.tooltip('hide');
updateTooltipTitle($emojiButton, oldTitle);
}, 2800);
}
scrollToAwards() {
const options = {
scrollTop: $('.awards').offset().top - 110,
};
return $('body, html').animate(options, 200);
}
addEmojiToFrequentlyUsedList(emoji) {
if (this.emoji.isEmojiNameValid(emoji)) {
this.frequentlyUsedEmojis = _.uniq(this.getFrequentlyUsedEmojis().concat(emoji));
Cookies.set('frequently_used_emojis', this.frequentlyUsedEmojis.join(','), { expires: 365 });
}
}
getFrequentlyUsedEmojis() {
return (
this.frequentlyUsedEmojis ||
(() => {
const frequentlyUsedEmojis = _.uniq(
(Cookies.get('frequently_used_emojis') || '').split(','),
);
this.frequentlyUsedEmojis = frequentlyUsedEmojis.filter(inputName =>
this.emoji.isEmojiNameValid(inputName),
);
return this.frequentlyUsedEmojis;
})()
);
}
setupSearch() {
const $search = $('.js-emoji-menu-search');
this.registerEventListener('on', $search, 'input', e => {
const term = $(e.target)
.val()
.trim();
this.searchEmojis(term);
});
const $menu = $(`.${this.menuClass}`);
this.registerEventListener('on', $menu, transitionEndEventString, e => {
if (e.target === e.currentTarget) {
// Clear the search
this.searchEmojis('');
}
});
}
searchEmojis(term) {
const $search = $('.js-emoji-menu-search');
$search.val(term);
// Clean previous search results
$('ul.emoji-menu-search, h5.emoji-search-title').remove();
if (term.length > 0) {
// Generate a search result block
const h5 = $('<h5 class="emoji-search-title"/>').text('Search results');
const foundEmojis = this.findMatchingEmojiElements(term).show();
const ul = $('<ul>')
.addClass('emoji-menu-list emoji-menu-search')
.append(foundEmojis);
$('.emoji-menu-content ul, .emoji-menu-content h5').hide();
$('.emoji-menu-content')
.append(h5)
.append(ul);
} else {
$('.emoji-menu-content')
.children()
.show();
}
}
findMatchingEmojiElements(query) {
const emojiMatches = this.emoji.filterEmojiNamesByAlias(query);
const $emojiElements = $('.emoji-menu-list:not(.frequent-emojis) [data-name]');
const $matchingElements = $emojiElements.filter(
(i, elm) => emojiMatches.indexOf(elm.dataset.name) >= 0,
);
return $matchingElements.closest('li').clone();
}
/* showMenuElement and hideMenuElement are performance optimizations. We use
* opacity to show/hide the emoji menu, because we can animate it. But opacity
* leaves hidden elements in the render tree, which is unacceptable given the number
* of emoji elements in the emoji menu (5k+). To get the best of both worlds, we separately
* apply IS_RENDERED to add/remove the menu from the render tree and IS_VISIBLE to animate
* the menu being opened and closed. */
showMenuElement($emojiMenu) {
$emojiMenu.addClass(IS_RENDERED);
// enqueues animation as a microtask, so it begins ASAP once IS_RENDERED added
return Promise.resolve().then(() => $emojiMenu.addClass(IS_VISIBLE));
}
hideMenuElement($emojiMenu) {
$emojiMenu.on(transitionEndEventString, e => {
if (e.currentTarget === e.target) {
$emojiMenu.removeClass(IS_RENDERED).off(transitionEndEventString);
}
});
$emojiMenu.removeClass(IS_VISIBLE);
}
destroy() {
this.eventListeners.forEach(entry => {
entry.element.off.call(entry.element, ...entry.args);
});
$(`.${this.menuClass}`).remove();
}
}
let awardsHandlerPromise = null;
export default function loadAwardsHandler(reload = false) {
if (!awardsHandlerPromise || reload) {
awardsHandlerPromise = import(/* webpackChunkName: 'emoji' */ './emoji').then(
Emoji => {
const awardsHandler = new AwardsHandler(Emoji);
awardsHandler.bindEvents();
return awardsHandler;
},
);
}
return awardsHandlerPromise;
}